I am first time user on TFP and joined up after seeing older post relating to the issues of Abalone Shell Chips causing brown staining in Diamond Brite Plaster. I am not referring to the shells losing their brilliance...this is an actual stain in the plaster around the shell
Has anyone else experienced this problem? Chemicals are all properly maintained. Brown 'halo' staining occurs around each piece of shell so that the pool appears to have chicken pox. It is in light colored diamond brite plaster (Tahoe Blue)
Acid and industrial strength hydrogen peroxide do nothing to it at all. Stains were not present at startup and appeared later, within or around a year after plaster.
I am located in Shreveport, Louisiana. Please message me if anyone has seen anything similar and I can upload or send images.